To personalize and edit your User Settings, click on the Edit Settings/Defaults link in the upper right corner of LUNA after log-in.
Edit your username and password
Choose your Default Collections
Choose your Viewing Preferences
Select how many thumbnails per page you want displayed: 50, 100, or 250
Select the size of the thumbnails displayed: small, medium, or large
Choose your Client Side Effects
Full Animations: If you have a good graphics card and like to see features like the Advanced Search box and Active Media Panel fade in and out as opposed to popping open, select the “Full Animations” option in the user preferences.
Minimal Animations: You’re not missing out on any features by selecting “Minimal Animation”, which simply makes tabs and windows within the LUNA application pop open.
Which option is best for me?
When you register "Minimal Animations" is selected by default and can easily be changed to "Full Animations". The “Full Animations” option requires slightly more CPU’s (central processing units) which could slow performance down a bit if, for example, you had a lot of images in the LUNA Workspace. If you feel the performance of LUNA has slowed down due to this change, simply change it back to "Minimal Animations".